Cataclysmic Era: I can unlock the tech tree

"Heh! Just take this as a joke."

Faced with Wilson's strange gaze, Lü Yongchang said with a forced smile.

Let's set aside whether the current material strength is sufficient to support a so-called planetary fortress.

Its extremely large weight and volume also destined it to be an impractical idea.

At least for a less advanced civilization, this is a plan that is absolutely impossible to complete.

"The experiment is complete, and we should go now." As he spoke, Lü Yongchang unfastened the magnetic clasp between his spacesuit and the chair.

Wilson naturally followed in Lü Yongchang's footsteps.

"Oh, right." As they walked up to the space elevator, Lü Yongchang suddenly said, "You reminded me."

"Since this is a war of range, perhaps we can bring out some old stuff."

Wilson cast a questioning look at Lü Yongchang.

……

Mars City No. 2

in an office.

The office door slowly opened, and a young voice came from the doorway.

"Mr. Qian, you wanted to see me?"

The elderly man behind the desk took off his glasses and slowly raised his head to look at the office door.

Upon seeing who it was, a kind smile appeared on his wrinkled face.

"Qiao Sheng, come in and let's talk."

Without hesitation, the young man standing at the door entered the office and sat respectfully in the chair in front of the desk.

"Teacher, is there something you need?"

Qian Zhengyang didn't speak, but just silently looked at the young man in front of him.

A few minutes later, Qiao Sheng spoke again tentatively, asking, "Teacher?"

Qian Zhengyang let out a long sigh and said softly, "Qiao Sheng, from now on, you will go to work for Academician Cao Liangcai in Mars City No. 1."

"Teacher?!" Qiao Sheng exclaimed in alarm, "Did I do something wrong?"

Qian Zhengyang's smile softened further as he slowly shook his head: "No, you did nothing wrong."

"On the contrary, you did very well."

"You are probably the best student I have ever taught in the past few years."

"Then, why..." Qiao Sheng's eyes were filled with confusion and bewilderment.

Qian Zhengyang sighed again, waved his hand, and turned the holographic image in front of him to Qiao Sheng.

"Take a look at this, and you'll understand."

The holographic image clearly showed the results of the recent weapons test!

"This..." Qiao Sheng was stunned when he saw the incredibly powerful weapon on the screen.

"See?" Qian Zhengyang shook his head helplessly. "Times have changed, missiles are outdated."

Qiao Sheng didn't speak, but just stared blankly at the fragments of the Luan Bird Starship flying in all directions on the screen.

"Then, what about you?" Qiao Sheng asked subconsciously.

"I?"

Qian Zhengyang chuckled and shrugged: "I'm an old man, what else can I do?"

"Perfect timing, I can enjoy my retirement life ahead of schedule."

"You're different. You're still young, and you can change direction."

"Don't worry, I'll write you a letter of recommendation. Old Cao and I are on good terms. Once you get there..."

Although Mr. Qian's face was full of smiles, Qiao Sheng could see the bitterness hidden beneath them.

Qiao Sheng slightly parted his dry lips, but didn't know what to say.

"Academician Qian Zhengyang, there's a communication from the spaceport. Should we connect?" Zero's voice rang out from the side, interrupting Qian's rambling.

Old Qian was taken aback for a moment, then subconsciously asked, "Spaceport?"

"Yes, it was a communication request from Professor Lü," Zero explained softly.

The look of astonishment on Qian Lao's face deepened: "Professor Lü?! Quick, get me connected!"

……

In the holographic image, Lü Yongchang greeted Qian Zhengyang with a smile.

"Professor Lü, hello, hello." Qian Zhengyang said with a hint of respect in his eyes, "I didn't know you were looking for me..."

Lu Yongchang's gentle voice came from the speaker next to him.

"Mr. Qian, it's like this."

"Considering that the new weapon has a short range and can only pose a threat to enemy ships within 50,000 kilometers, I am prepared to restart the missile development project."

"..."

Qian Zhengyang stared blankly at the holographic image in front of him.

For a moment, he felt somewhat dazed.

The project has been revived?

Missiles are not outdated?

Can he still continue his missile research?!

A series of questions flashed through his mind.

"Mr. Qian? Mr. Qian?" Lu Yongchang's voice came from the loudspeaker.

"Professor, I'm here," Qian Zhengyang quickly replied.

Seeing Qian Lao's expression, Lü Yongchang guessed the general reason.

He chuckled and continued, "Mr. Qian, let me repeat myself."

"In order to adapt to interstellar warfare, we need to increase the cruise range and cruise speed of our missiles. The cruise range should be at least 300,000 kilometers and the cruise speed should be at least 1000 kilometers per second."

"Unlike those new weapons, due to speed limitations, missiles will mainly be used for surprise attacks in interstellar warfare, so missile stealth is more important."

Are you confident in these things?

Without any hesitation, Professor Qian stood up from his chair and said solemnly, "Professor Lü, rest assured, I will do my best to complete this task!"

Lu Yongchang nodded slightly: "Feel free to mention any difficulties you may have."

"Oh, right, there's one more thing."

"The power of missiles also needs to be further enhanced. I personally prefer EMP attacks and targeted nuclear weapons."

A hint of doubt appeared in Qian Lao's eyes.

He knew about EMP, but what was that targeted nuclear weapon?

Lu Yongchang paused for a moment, then continued to explain.

"I won't go into detail about EMP; you surely understand."

"Directed nuclear weapons work by using external equipment to constrain the direction of the explosion. The nuclear explosion then propels the intermediate material, which is converted into plasma, toward the enemy ship, thereby causing massive damage."

This is also the solution that Lü Yongchang just came up with.

Although he couldn't solve the problem with conventional plasma weapons, he could use tricks!

With the same ultra-high temperature plasma, if operated properly, directed nuclear weapons can demonstrate the power of a Level 2 civilization weapon at extremely close range!

This weapon, which transcends the level of civilization, could even be used as a trump card for human civilization!

Mr. Qian, who was behind his desk, listened in a daze.

"Mr. Qian, I'm leaving this matter to you," Lü Yongchang said with a serious expression. "Especially targeted nuclear weapons, which will be a trump card for human civilization, so we must take them seriously."

Qian Zhengyang's expression hardened, and he nodded slowly but firmly.

The holographic image is off, and communication is interrupted.

Qian Zhengyang turned to Qiao Sheng at his desk, laughed loudly, and said, "What are you standing there for? Hurry up and get to the lab!"

Qiao Sheng's eyes lit up, and after responding, he ran out of the office!

"Don't forget to contact the researchers in your old lab!"

Behind them, Qian Lao's voice rang out.